diff --git a/cache.h b/cache.h
index d3429a0d48..cbec0ecd23 100644
--- a/cache.h
+++ b/cache.h
@@ -961,12 +961,6 @@ extern void check_repository_format(void);
 #define DATA_CHANGED    0x0020
 #define TYPE_CHANGED    0x0040
 
-/*
- * Put in `buf` the name of the file in the local object database that
- * would be used to store a loose object with the specified sha1.
- */
-extern void sha1_file_name(struct strbuf *buf, const unsigned char *sha1);
-
 /*
  * Return an abbreviated sha1 unique within this repository's object database.
  * The result will be at least `len` characters long, and will be NUL
diff --git a/http-walker.c b/http-walker.c
index d850408d18..75d55d42a9 100644
--- a/http-walker.c
+++ b/http-walker.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "repository.h"
 #include "commit.h"
 #include "walker.h"
 #include "http.h"
@@ -546,7 +547,7 @@ static int fetch_object(struct walker *walker, unsigned char *sha1)
 		ret = error("File %s has bad hash", hex);
 	} else if (req->rename < 0) {
 		struct strbuf buf = STRBUF_INIT;
-		sha1_file_name(&buf, req->sha1);
+		sha1_file_name(the_repository, &buf, req->sha1);
 		ret = error("unable to write sha1 filename %s", buf.buf);
 		strbuf_release(&buf);
 	}
diff --git a/http.c b/http.c
index efa977112a..4d613d5f6b 100644
--- a/http.c
+++ b/http.c
@@ -2247,7 +2247,7 @@ struct http_object_request *new_http_object_request(const char *base_url,
 	hashcpy(freq->sha1, sha1);
 	freq->localfile = -1;
 
-	sha1_file_name(&filename, sha1);
+	sha1_file_name(the_repository, &filename, sha1);
 	snprintf(freq->tmpfile, sizeof(freq->tmpfile),
 		 "%s.temp", filename.buf);
 
@@ -2396,8 +2396,7 @@ int finish_http_object_request(struct http_object_request *freq)
 		unlink_or_warn(freq->tmpfile);
 		return -1;
 	}
-
-	sha1_file_name(&filename, freq->sha1);
+	sha1_file_name(the_repository, &filename, freq->sha1);
 	freq->rename = finalize_object_file(freq->tmpfile, filename.buf);
 	strbuf_release(&filename);
 
diff --git a/object-store.h b/object-store.h
index f54bc0b951..3707f3c495 100644
--- a/object-store.h
+++ b/object-store.h
@@ -121,4 +121,11 @@ struct raw_object_store {
 struct raw_object_store *raw_object_store_new(void);
 void raw_object_store_clear(struct raw_object_store *o);
 
+/*
+ * Put in `buf` the name of the file in the local object database that
+ * would be used to store a loose object with the specified sha1.
+ */
+#define sha1_file_name(r, b, s) sha1_file_name_##r(b, s)
+void sha1_file_name_the_repository(struct strbuf *buf, const unsigned char *sha1);
+
 #endif /* OBJECT_STORE_H */
diff --git a/sha1_file.c b/sha1_file.c
index 04118f331c..fe16d30f66 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -323,7 +323,7 @@ static void fill_sha1_path(struct strbuf *buf, const unsigned char *sha1)
 	}
 }
 
-void sha1_file_name(struct strbuf *buf, const unsigned char *sha1)
+void sha1_file_name_the_repository(struct strbuf *buf, const unsigned char *sha1)
 {
 	strbuf_addstr(buf, get_object_directory());
 	strbuf_addch(buf, '/');
@@ -713,7 +713,7 @@ static int check_and_freshen_local(const unsigned char *sha1, int freshen)
 	static struct strbuf buf = STRBUF_INIT;
 
 	strbuf_reset(&buf);
-	sha1_file_name(&buf, sha1);
+	sha1_file_name(the_repository, &buf, sha1);
 
 	return check_and_freshen_file(buf.buf, freshen);
 }
@@ -874,7 +874,7 @@ static int stat_sha1_file(const unsigned char *sha1, struct stat *st,
 	static struct strbuf buf = STRBUF_INIT;
 
 	strbuf_reset(&buf);
-	sha1_file_name(&buf, sha1);
+	sha1_file_name(the_repository, &buf, sha1);
 	*path = buf.buf;
 
 	if (!lstat(*path, st))
@@ -903,7 +903,7 @@ static int open_sha1_file(const unsigned char *sha1, const char **path)
 	static struct strbuf buf = STRBUF_INIT;
 
 	strbuf_reset(&buf);
-	sha1_file_name(&buf, sha1);
+	sha1_file_name(the_repository, &buf, sha1);
 	*path = buf.buf;
 
 	fd = git_open(*path);
@@ -1588,7 +1588,7 @@ static int write_loose_object(const unsigned char *sha1, char *hdr, int hdrlen,
 	static struct strbuf filename = STRBUF_INIT;
 
 	strbuf_reset(&filename);
-	sha1_file_name(&filename, sha1);
+	sha1_file_name(the_repository, &filename, sha1);
 
 	fd = create_tmpfile(&tmp_file, filename.buf);
 	if (fd < 0) {